Here it is, my vote for the single funniest episode of "What's My Line?" I suspect there are some folks out there who will find it irritating how much Groucho demolishes the format of the show around him, but everyone on stage appears to be loving it just as much as the audience is. One of Groucho's finest (half) hours after the breakup of the Marx Brothers as a team.
MYSTERY GUEST: Claudette Colbert (Groucho on Panel)
PANEL: Arlene Francis, Groucho Marx, Dorothy Kilgallen, Bennett Cerf
Groucho returns to WML as mystery guest in 1963: https://www.youtube.com/watch?v=n_NzXFs3Rqg
Groucho returns to the WML panel in 1964: https://www.youtube.com/watch?v=tYSrDfn7z1Q
Groucho returns one last time as mystery guest in 1967:
https://www.youtube.com/watch?v=D-tjOOxcUyU
Groucho Marx on You Bet Your Life: https://www.youtube.com/channel/UCUIbTdEI7D1AMyLATIdKq5w

Announcing. . . the WML "Summer of Upgrades"!
Every Sunday this summer, I'll be posting upgraded versions of episodes already posted to this channel. Today's video replaces a version that didn't include the original commercials. Because the complete copy of this show was in significantly lower video quality, I've preserved all the footage from GSN and spliced in only the missing material. This includes not just the commercials, but also the spiel from John instructing viewers on how to contact the show to become contestants, which was always snipped out of the GSN reruns. More John Daly is always a good thing.
To see the comments left on the earlier version of this show, please click this link:
https://www.youtube.com/watch?v=1Pco70dSu3c
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MYSTERY GUEST: Ronald Reagan
PANEL: Dorothy Kilgallen, Steve Allen, Arlene Francis, Bennett Cerf
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Join our Facebook group for WML-- great discussions, photos, etc, and great people! https://www.facebook.com/groups/728471287199862/
Please click here to subscribe to the WML channel if you haven't already-- you'll find the complete CBS series already posted, and you'll be able to follow along the discussions on the weekday "rerun" videos: http://www.youtube.com/channel/UChPE75Fvvl1HmdAsO7Nzb8w?sub_confirmation=1

NOTE: This post replaces an earlier version that had significant a/v dropouts. The video isn't the highest quality, but it's a rare episode with original commercials intact, and of great historical importance considering who the mystery guest is.
MYSTERY GUEST: Eleanor Roosevelt
PANEL: Dorothy Kilgallen, Steve Allen, Arlene Francis, Bennett Cerf
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Join our Facebook group for WML-- great discussions, photos, etc, and great people! https://www.facebook.com/groups/728471287199862/
Please click here to subscribe to the WML channel if you haven't already-- you'll find the complete CBS series already posted, and you'll be able to follow along the discussions on the weekday "rerun" videos: http://www.youtube.com/channel/UChPE75Fvvl1HmdAsO7Nzb8w?sub_confirmation=1

MYSTERY GUEST: Raquel Welch
PANEL: Arlene Francis, George Grizzard, Phyllis Newman, Tony Randall
Many thanks to Steve M. Russo for providing this episode in much higher quality than the version I had previously. Folks interested in high quality, well packaged, well-edited DVDs of WML (and other game shows) can contact him directly for more information at [email protected]
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Join our Facebook group for WML-- great discussions, photos, etc, and great people! https://www.facebook.com/groups/728471287199862/

NOTE: A small part of the John Wayne segment is missing, apparently due to a bad film splice.
MYSTERY GUEST: John Wayne
PANEL: Arlene Francis, Joey Bishop, Dorothy Kilgallen, Bennett Cerf
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Join our Facebook group for WML-- great discussions, photos, etc, and great people! https://www.facebook.com/groups/728471287199862/
To stay up to date with postings, please consider supporting the WML channel by subscribing. The WML channel already contains the complete CBS series, with new videos still being added on the weekends. http://www.youtube.com/channel/UChPE75Fvvl1HmdAsO7Nzb8w?sub_confirmation=1